Evolution and status quo of LED display packaging

LED display packaging has developed from early-days DIP (dual in-line package) to today’s multiple packaging methods such as SMD, IMD, and COB,. These methods have reshaped the industry.

 

Since the advent of SMD in 2001, the market share of DIP (direct insertion pattern) packaging has been shrinking annually. However, DIP is still used to ensure product reliability in harsh environments like high-altitude or ultra-low temperature conditions. SMD has played a dominant role in LED packaging for more than a decade. It was not until 2016 that COB began to attract more market attention.
In 2017, SONY launched a Micro-LED display based on flip-chip COB, which inspired the industry to further explore the COB development path. At the end of 2017, the concept of Mini-LED was raised. That greatly accelerated the evolution of pixel pitches towards a finer level. Limited by technology and equipment, conventional single diode SMD packaging reaches it’s smallest size at 0.5*0.5mm. Any smaller packaging size from this point is no longer processable by the current SMT process. This physical limit encouraged the entire industry to explore other technologies such as COB (especially flip-chip COB) to continue its technological evolution.
In 2018, NationStar launched its 4-in-1 IMD09 and put forward the concept of IMD, which combined the advantages of both SMD and COB. This officially began the three-way race between SMD, IMD, and COB in the fine-pitch LED display industry.
 Evolution of LED Diodes Packaging 2000-2019

Fine-pitch LED Display Industry Overview

Definition of fine-pitch LED displays

Fine-pitch LED display generally refers to LED displays with pixel pitch at or below 2.5mm. Mainstream fine-pitch LED display products are referred to as P2.5, P1.8, P1.5, P1.2, P0.9, etc. As technology develops and costs lower, direct-view fine-pitch LED displays are being used in an increasing number of applications, including corporate, retail, and educational settings, control rooms, broadcast studios, 3-D, and virtual or augmented reality displays. Compared with traditional larger-pitch LED displays, fine-pitch LED displays to bring higher resolution (full HD, 4K, 8K, and higher) to the application market, allowing an increasingly broader range of creativity. Fine-pitch LED display is a general term for a larger set of systems, consisting of LED display, HD/UHD display control systems, video processing systems, etc. Fine-pitch LED displays to use pixel-level point control technology to achieve a highly detailed level of brightness, color reproduction, and uniformity in every pixel unit. A key production link in the fine-pitch LED display manufacturing process is Automatic Reflow Welding, which helps to improve the reliability of welding and tremendously reduces the pixel failure rate.

 

IMD 4 in 1 LED

Development history of fine-pitch LED displays

Since LED displays entered the application market, they have developed from single- and dual-color displays to full-color screens, then to fine-pitch. Prior to 1993, LED display screens were limited to red and green dual-color displays and were used in limited applications such as traffic lights and the banking & securities industry. In 1993, Nakamura Shuji invented the blue LED chip, which completed the three primary colors (RGB) and opened a new chapter of full-color displays. In 2001, SMD packaging was introduced, and Chinese LED display manufacturers gradually grew in scale and expanded from domestic to overseas markets. By 2009, European and American enterprises withdrew from the LED display manufacturing market, and Chinese manufacturers became a driving force in the global LED display industry.

Milestones in the LED Display Development History

In 2010, with the launch of the first P2.5mm fine-pitch display, the entire industry began a long-term evolution from outdoor to indoor applications, shifting from larger to finer pitches. The following five years witnessed a stunning 3-digit growth rate with fine-pitch products used in more and more applications. In 2015, facing pressure from Chinese LED display manufacturers, whose compound annual growth rate exceeded 100%, manufacturers of traditional rear-projection and LCD equipment, such as Samsung, Panasonic, Planar, NEC, etc, also joined the fine pitch race. In 2016, Sony-made COB products caught market attention, especially after its Crystal Micro-LED screen, based on COB packaging technology, exhibited at CES in 2017. In the same year, the concept of mini-LED was raised and COB packaging further advanced to flip-chip technology. In 2017, IMD (integrated matrix device, also known as N-in-one) technology was introduced by NationStar with its pioneering product, the 4-in-1 IMD0.9, dividing the fine-pitch market into three major product lines: SMD, IMD, and COB.

 

2020 was expected to be the beginning of the Sub-1 mm Era, with a conservative estimate of 5% of overall fine-pitch sales volume. However, due to the worldwide outbreak of COVID-19, the Sub-1 mm Era may be postponed into 2021 or even 2022.

VISIONPI provides a full range of fine pixel pitch led wall solutions from 0.77 to 2.5mm.Get answers about Pricing, Specifications, Installation, and more.

flip chip cob led display

LED Cylinder Display

Are you looking for a display option that can provide a 360-degree viewing experience, high-definition images, and high transparency? If so, you might want to consider the cylinder LED screen, also known as the pillar LED screen or the LED column. This is a cylindrical display that can show immersive and dynamic content in various settings. In this article, we will explain what the cylinder LED screen is, how it works, its features, applications, how to choose the best quality, and the benefits of getting one.

What is a Cylinder LED Screen? A cylinder LED screen is a type of LED display that has a cylindrical shape and provides a 360-degree viewing angle. Unlike traditional flat screens, the cylinder LED screen can display content in all directions, making it ideal for applications where a wide viewing range is required. The cylinder LED screen can be customized to different diameters and heights, depending on the needs of the environment.

Application of the cylinder LED screen

Earlier, we have mentioned everything about this revolutionary technology. But it’s better to know about the places where you can install these screens to get pros. So, we can place these screens in:

Hotels Shopping centers Exhibition centers
Corporate offices Malls Airports
Universities LED pillar in bar Government buildings
Meeting halls Square And much more

It is a versatile display option that can be used in various environments, such as hotels, shopping centers, exhibition centers, corporate offices, airports, universities, government buildings, and meeting halls. It has several features that make it stand out from other display options, such as 360-degree viewing angle, high flexibility, easy installation, and high-definition images. It also has several benefits that make it worth getting, such as enhancing brand image, increasing sales and revenue, improving customer satisfaction and loyalty, and saving time and money. If you are looking for a display option that can provide you with these advantages, you should consider getting a cylinder LED screen from a reputable supplier.

led cylinder display manufacturer visionpi china

Precision-Engineered Die-Cast Aluminum Cabinets Cylinder LED Screens

In today’s dynamic display market, cylindrical LED screens are commonly constructed using steel cabinets or merely supported by frames with flexible modules attached via magnets. However, for applications requiring finer pixel pitches below 2mm, the precision in the manufacturing of the cabinet and frame becomes critical. Any minor deviation in dimensions can lead to visible unevenness across the LED screen, compromising the visual integrity and the display’s overall impact.

flexible led display die-casting aluminum

Die-casting Aluminum curve cabinet

 Our cylindrical LED display revolutionizes this approach by employing a CNC die-cast aluminum cabinet, which ensures unparalleled precision and uniformity. The die-casting process allows us to achieve a higher level of dimensional accuracy and stability, essential for maintaining perfect flatness in fine-pitch displays. This method not only enhances the structural integrity of the screen but also significantly reduces the potential for pixel misalignment caused by inconsistencies in cabinet dimensions.

Moreover, the use of aluminum offers superior thermal conductivity, which is vital for heat dissipation in high-density LED configurations, thereby extending the lifespan of the display. The robust construction of the die-cast aluminum cabinet also provides enhanced durability and resistance to physical stress, making it an ideal choice for various installation environments.

Incorporating advanced manufacturing techniques and materials, our LED cylindrical screen sets a new standard for precision and performance in the industry, offering a visually stunning, reliable, and long-lasting display solution.

cylinder led display flexible webp
led tree display visionpi

Outdoor LED Cylinder Display

outdoor led cylinder display high brigtness

Transparent LED Cylinder Display

The Cylinder series is a superior transparent LED display that can be custom designed to form a unique cylinder shaped display. The LED modules have up to 70% transparency, which means that they can show content on the screen while allowing the background to be seen.

Customized size is available to be perfect for different screnes.With its unbelievable light weight, you can choose an easy hanging installation. Otherwise you can turn the display into a smart signage with our modern design stand

LED display price increased? how ?

Since the beginning of the new year in 2021, major upstream raw material manufacturers in the LED display industry have successively issued price increase notices, leading to continuous increases in the purchase cost of LED raw materials (see details). As the upstream price increase surges all the way, the wildfire of price increase still burned to the downstream enterprises of the manufacturing, LED display companies such as Leyard, Unilumin, Absen have also issued price increase notices.

Leyard

On May 14, Leyard released the “Explanation on Global Price Increase of LED Display Products”. Leyard said that because of the increasingly tight supply of major upstream raw materials (semiconductor chips, lamp beads, PCB, etc.) and the significant increase in costs, Leyard, as the world’s largest LED display manufacturer, can still guarantee materials supply. but the increase has also led to a corresponding increase in the production and manufacturing costs of our LED display products.

To ensure R&D investment, product quality improvement and achieve this year’s production and operation goals, Leyard’s production bases will increase the ex-factory prices of products globally from May 17, 2021; it is expected to affect different series of Leyard products The market sales price of the country increased by 3-15%.

Unilumin

 It has to be said that the price increase of raw materials is a problem for the entire industry, and fierce competition makes it difficult to pass the cost completely to the end-user.

Hu Yan, Chief Financial Officer of Unilumin Technology Corporation, recently stated on the investor relations interactive platform that the price increase of upstream raw materials is a problem for the whole industry The company will balance the target value and adjust the price of some products appropriately to release part of the pressure.

Absen

Absen said that the company will adjust its sales price to customers based on market competition and company strategy.

In response to the increase in raw material prices, Absen stated at the investor interaction event on May 7 that the company adheres to the core values ​​of “integrity, gratitude, and responsibility”. uses its advantages to strengthen cooperation with upstream suppliers, and obtains strategic upstream suppliers. Support; At the same time, based on capacity forecasts and production planning, strategic stocking of key materials to ensure relatively low-cost material procurement and supply guarantee; In addition, the introduction of new materials, new technologies, and new equipment applications to improve efficiency and reduce overall cost.

 How much did the price go up?

Looking back at the origin, the price increase of various upstream raw materials, and the mismatch of various supporting devices and materials, have played a role in promoting the price increase of display products.

Previously, according to statistics from Experts, among the materials involved in display products, chips increased by 15-20%, driver ICs increased by 15-25%, metal materials increased by 30-40%, and PCB boards increased by 10- 20%, RGB devices increase by 4-8%, and display screens increase by 10-15%. (PS: As the price trend continues to rise, the price increase information may be lagging. Please refer to the latest announcements of the current companies.

How shoud we  deal with the price increase.

In my opinion, the current price is likely to be the lowest price for a long time in the future. Moreover, as long as the price goes up, it will be difficult to call back, because it is impossible to take back the US dollars issued by USA and the currency issued by other countries.

In addition, the major shipping companies have also joint to raised prices recently, I hope you can make reasonable order & shipping plans.

VMS Traffic LED Display

VMS LED SIGN FEATURES

VisionPI offers a comprehensive range of Intelligent Traffic System solutions designed to optimize road traffic and enhance the driving experience through advanced technology and smart features. Here’s a simplified breakdown of our offerings:

Table of Contents
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  • Variable Message Signs (VMS):

    • Direct-inserted VMS for immediate communication.
    • Lens dynamic message signs that adjust messages based on real-time conditions.
    • Full-point matrix signs that offer versatile display options.
    • LED speed limit signs to ensure compliance with speed regulations.
  • Control Center LED Monitoring Screen:

    • High-definition screens that offer clear monitoring of traffic conditions for effective management.
  • Lane Control Signs:

    • Signs that assist in directing traffic flow and lane usage dynamically.
  • Smart Traffic VMS System:

    • Integrates big data and mobile internet to provide functions like traffic guidelines, media display, emergency information, data presentation, and feedback.
  • LED Road Lighting System:

    • Utilizes graphene material for superior heat dissipation.
    • High-efficiency lighting to create a stable and safe road environment.
  • Light Pole Screen System:

    • Transforms lighting poles into multi-functional units offering vehicle-to-road communication, high-precision navigation, and early warnings using advanced sensors.
  • Monitoring LED Screen System:

    • Features fine pixel pitch for delicate imaging and high color fidelity.
    • Supports massive image processing capabilities for detailed traffic monitoring.
  • Light Supplement System:

    • High-power LED light sources equipped with a unique secondary optical design to enhance road monitoring visibility, especially beneficial for nighttime or low-light conditions.
SPEED LIMIT LED SIGN FACTORY
round circle speed limit led sign
lane control traffic sign
passenger information led sign

Revolutionizing Road Safety and Information Flow: The Advanced VMS LED Signs

In the ever-evolving world of digital communication, Variable Message Signs (VMS) have become a cornerstone in managing traffic and conveying important information to the public. Today, I’m excited to share insights into the latest advancements in VMS technology, particularly focusing on the state-of-the-art VMS LED signs that are setting new standards in the industry.

 

Unveiling the Cutting-Edge Features of VMS LED Signs

Our VMS LED signs are designed with several innovative features that enhance their performance, durability, and flexibility. Here’s a closer look at what sets these signs apart:

1. Patented Design LED Module
Each unit is built using a private mold kit, ensuring unique design specifications that cater to specialized needs. This feature allows for bespoke solutions, tailored to the specific requirements of various environments and applications.

2. Wide Waterproof Apron
To withstand adverse weather conditions, our VMS signs are equipped with a wide waterproof apron. This apron plays a crucial role in protecting the internal components from water ingress, significantly enhancing the sign’s longevity and reliability.

3. Metal Lock
Security and stability are paramount for any roadside installation. Our VMS LED signs feature robust metal locks, securing the units against physical tampering and ensuring they remain steadfast in their positions.

4. Car Waterproof Rubber Strip
Enhancing the waterproof capabilities, the car waterproof rubber strip seals the edges tightly, protecting against water and dust. This meticulous attention to detail ensures the longevity and reliability of our signs in all weather conditions.

5. Inside and Outside Double Sealed Chassis
Each sign benefits from a double-sealed chassis, both inside and out. This feature provides superior protection against environmental factors such as dust, water, and humidity, which are crucial for maintaining functionality and extending the lifespan of the signs.

6.Display Module Versatility and Interchangeability
The display modules of our VMS signs offer versatility and interchangeability, allowing for easy updates or replacements without the need to overhaul the entire system. This modular approach not only facilitates maintenance but also adapts easily to changing needs or upgrades in technology.

7. Double-Box Structure with Natural Convection Mode
Our signs incorporate a double-box structure that forms an internal natural convection mode. This innovative design aids in cooling the components naturally without the need for additional fans or cooling systems, enhancing energy efficiency and reducing maintenance requirements.

8. Special Wide Temperature Range Device
Each VMS LED sign is equipped with devices capable of operating across a wide temperature range. This ensures reliable performance under varying climatic conditions, from scorching summers to freezing winters, thus guaranteeing consistent visibility and durability.

P6.67 VMS LED MODULES HIGH BRIGHTNESS LEN copy
P8 VMS TRAFFIC LED DIPSLAY MODULE copy
P10 OUTDOOR VMS TRAFFIC LED DISPLAY copy

 A New Era for Traffic Management and Communication

The advanced features of our VMS LED signs not only enhance road safety but also ensure that traffic information is communicated effectively and reliably. With these enhancements, our VMS signs are ideally suited for a variety of applications, from highways and city roads to events and construction sites. As we continue to innovate, our goal remains clear: to provide sophisticated, reliable, and easy-to-maintain solutions for dynamic traffic management and public communication needs.

In conclusion, the next-generation VMS LED signs are more than just traffic tools; they are integral components of modern infrastructure, designed to meet the high demands of today’s fast-paced world. With their robust construction, versatile functionality, and advanced technological features, these signs are set to transform how we manage traffic and convey information, making roads safer and information flow more efficient.

Made in China LED Package Brands

Cree led display

If you are looking for Nichia or Cree from China, it usually takes you one month more for the production, only those public companies established stable and long-term cooperation with NICHIA and CREE, and they will be able to provide better cost-effective price than others. Because they get better prices and support from Nichia.

nichia led display

If you are looking for Nichia or Cree from China, it usually takes you one month more for the production, only those public companies established stable and long-term cooperation with NICHIA and CREE, and they will be able to provide better cost-effective price than others. Because they get better prices and support from Nichia.

multi-color led

 Hangzhou Multi-Color Optoelectronics Co., Ltd, invested by Hangzhou Silan Micro-Electronics(SH.600460) and Hangzhou Silan Azure, is specialized in designing and manufacturing LED products. With its establishment in July of 2009, the company is now located at No. 300, 10th Avenue, East HETZ, Hangzhou, China. Most Chinese factory may claim that nationstar is the best “made in china” LED Package company, only because nationstar has much big market share

jiontec led display

Suzhou Jointec Co., Ltd. was established in Jan 2008 and is located in Suzhou Singapore Industrial Park, where it provided the most preferential policies for the investors. It covers a total of 5,000 Sq. meters, which includes 4,000 Sq. meters dust-free/anti-static clean workshop. The business scope is focused on High-end SMD full-color display markets. The company owns Intellectual property, integrates upstream and downstream LED industry resources, combines design, R&D, manufacture and sells to meet high-end customer’s needs. Like Multi-color, Jointec is also focusing on high-end market.

nationstar led display

Nationstar probably the most frequent name mentioned by your suppliers.NATIONSTAR is a National level key high-tech enterprise with professional capability in manufacturing LED components and LED application products. The enterprise’s production bases cover a total area is 92,600㎡, while the workshops and the office building area is 199,000㎡. NATIONSTAR was founded in 1969 and started LED production in 1976. Its German subsidiary and American subsidiary were established in 2015. NATIONSTAR ranks 8th in the list of packaged LED market shares in 2018, according to the IHS Market reports. For customers who need a stable quality and willing to pay more 90% will choose to use the Nationstar LED, and nationstar led are widely used among chines factories, because, Nation star LEDs also have different quality levels, such as high-bright gold wire, gold wire, and copper wire. If you want to learn more about the difference, please refer to  led display are not the same for led wire bonding material.

kinglight led display

Shenzhen Kinglight Co., LTD is a national high-tech enterprise dedicated to packaging LEDs for display and illumination. With the tradition of creation and outstanding contribution to the packaging industry, the company is awarded the honor of“Guangdong Province Enterprise of Credit” “National High-tech Enterprise” Top 10 of Guangdong LED packaging Enterprise” “CompetitionTop10of National illumination LED packaging Enterprise” “Outstanding National LED Packaging Enterprise” “National Top Competitive LED Enterprise”.Kinglight led are widely applied to global market and projects( Guangshen Highway, Canadian tube light market, 2014 CCTV Evening for Spring Festival live show room, Shanghai World Expo, King’s ceremony of Thailand Kinglight will be a good alternative for nation star if you have a limited budget, only ask for spare parts.

DSBJ led display

Established in 2010, DSBJ’s LED unit provides exceptional solutions for the HD electronic display industry, currently ranking 3rd worldwide in production volume, with annual revenue exceeding 0.29 billion US dollars and a 500-strong R&D management team. Supported by our proprietary Silicon Mold Packaging technology, as well as backlight LED packing development and manufacturing capabilities, we work closely with clients seeking trustworthy light source solutions in HD displays, TV backlights, mobile phones, and lighting.

KN-light led display

Shenzhen Kn-light Electronic Technology Co., Ltd. is a manufacturing enterprise integrating R & D, production, and manufacturing. The company was established in 2013 with a registered capital of 50 million with a production area of more than 10,000 square meters. The company and its subsidiary are located in Building 1 of LED Pioneer Park, Anshan High-tech Zone, with a production area of more than 10,000 square meters. At present, the overall production capacity has exceeded 2500KK / month. “National High-tech Enterprise” and “Shenzhen High-Tech Enterprise” have three independent invention patents and 12 utility model patents.

Kn-light still has SMD3528 for indoor ( p5 p6 p8) and nation star has to remove SMD3528 from their product line. Kn-light is the second option if you have a limited budget, probably not for outdoor, but for indoor application, ask for more spare modules, it won’t be a big problem, but you find some dead pixels within an acceptable rate that won’t affect the viewing experience

HONTSHENG LED DISPLAY

 Jingzhou Hongsheng Optoelectronics Technology Co., Ltd. is jointly invested and established by San’an Optoelectronics Co., Ltd., a leading company in the Chinese optoelectronics industry in July 2009 with a registered capital of 150 million RMB.

Hongsheng Focus on only LED DISPLAY LED –Iron wire/Copper wire ( we will discuss later)Both indoor and outdoor. Hongsheng has been widely applied in those factories that make bulk production for led modules, focus on low-end market, sell to developing countries like India and Brazil and southeast Aisa. 90% of those modules production factories are using Tier 3 LEDs, so when you have a much lower price, it could be those tier 3 LEDs, but they won’t tell you the truth but claim to be a Nation star. It is very critical to understand the trick and verify which LEDs they are using. How to know exactly the LEDs they are actually giving you? Now, take note: Hongsheng also provides 3528 SMD Don’t be fooled when someone tells you that they are using a nationstar 3528 for (P4 P5 P6).

MLS LED DISPLAY

MSL (Mulinseng). In 2016, MLS has made a big jump and risen to No. 2 in the Chinese market, list of top ten manufacturers in LED Packaging revenue. Wow, it quite impressive right? But why we put MLS in Tier 3? check their website, no even some detailed description for their products. LEDs on the led screen is just a small part of MLS business, and like Hongsheng, MLS LEDs are mostly working with those led modules manufacturers, like Q-color, who sells LED modules with a very low wholesale price. probably the lowest price in the market. MLS LEDs had big quality problems with his led chip before, this critical incident brought a negative reputation on MSL. We don’t doubt that MLS can make good quality LED, but the reality is that MLS is still active in the low-end market,it is maybe too late to get into the middle and high-end market because Nationstar already takes big market share. In the low-end market,MLS has obvious advantages and the opportunity to be the NO.1.

All those companies we mentioned are the mainstream for LED DISPLAY, most of the leading manufacturers are working with some of them. Unless you ask for Nichia and Cree, they would recommend the Nationstar/multicolor if you are looking for high quality, if you have a limited budget, Kinglight or DSBJ would be a good alternative. The fact is that most of the quotes you had are with Nationstar, or sometimes Kingligh and DSBJ, while you find a big price difference. Even the same brand has different quality levels, such as high-bright gold bond wire, gold bond wire, copper bond wire, or even Iron wire. (we will discuss in the “wire bonding” part)  

Hongsheng,MLS, Knight represent the lowest price LEDs in the market but also with a low-quality. Mulinsen is the Top 2 led package company in revenue around the world. Hongsheng is jointly invested and established by San’an Optoelectronics Co( leading LED CHIP company), They certainly can produce high-quality products, for this moment, they are mainly providing the price-oriented product to those led modules manufacturers, and sell to other led display factories. with a low wholesale price of the LED modules. they may make middle or high-end products in the future, which we are not sure about. if you are looking for quality-oriented LED, and don’t want to spend so much time to learn about the subtle difference between those Packages, just bypass those low-end positioning company. Considering the total cost of ownership, Nationstar/Kinglight can meet your requirement for price and quality.

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